Tagged Questions

iOS is Apple's operating system for mobile devices, such as the iPhone, iPod touch, iPad and Apple TV (2nd generation and up). Much is shared with OS X, but iOS is optimized for touch-based interfaces.

I have a UITabBarController linked to 4 view controllers each embedded in a NavigationViewController.
I need to check if when one of these view controllers is currently selected, and the user clicks ...

I'm trying to add a "favorite button" to a custom cell in a UIableView.
The cell has a label and detailLabel that show fine. I must be doing something wrong but I can't figure out what it is. My code ...

I have a UIWebView which I can drag through a UIPanGestureRecognizer. During a drag, I want to prevent user interactions with the UIWebView. Conveniently, the property userInteractionEnabled of the ...

I am learning and translating some very old fixed function OpenGL (on desktop) into modern OpenGL (iOS). I have translated all of the verts, colors, and texturing but am stuck on these two lines and ...

We were running into issues trying to add a test target to a project we inherited. The test target was working, however Running the app would always fail due to an error in the test target. We were ...

**I have this problem after setting up UItabbar in app delegate.
The problem are : 1-The app crash only after press the discovery tab bar. 2-Home + Add + Profile ViewControllers are Black .
Thank you ...

I found this style on cocoapods (https://github.com/Sumi-Interactive/SIAlertView) and changed all of alert views in the app from the default view to this. I want to know if I can change the style of ...

I have a question about png-8 vs png-24 usage vs Xcode's built in "image compressor".
Some images converted to png-8 are just fine saved like that, because difference between png-24 version can't be ...

We are using Azure Mobile Services to Push notifications to a Xamarin Android and a Xamarin iOS and a Windows Universal App. The Windows Universal App has plenty of documentation around what we need, ...

I'm having this error "unrecognized selector sent to instance" when I click on the button "cadastrar" to register my new announcement of a aplicatiov to the database. I'm using restkit and my api is ...

When I pick an image from UIImagePicker with sourceType PhotoLibrary... that's a square... with allowsEditing flag set to true, the image by default sits ~18px down from where it should be
Any ideas ...

Getting the updated frame with AutoLayouts it is a problem, that I know and been through it's solutions. All solutions are very much efficient but my problem has a limp.
Things I have done :
I have ...

I'm creating an iOS app and I wanted to include the launch images. I created the ressource using XCode in Images.xcassets but the ressource contains 20 different formats. Moreover, XCode doesn't allow ...

Can anyone explain why this happens to my UIDatePicker?? It also happens to my UIPickerViewas well. I noticed this bug the other day on one view controller and it was not happening like a week ago. ...

I need to create an action extension which can be used in conjunction with the iOS Safari app. When the user presses the action extension in Safari, I want my app to be launched and have the URL of ...

We are testing our app on several iPhone 6 Pluses, and at some point we are using GPUImage to capture some images. On my device, it works fine, but on my friend's device, it causes app to crash and ...

Is there any way to unarchive a custom SKSpriteNode subclass from a SpriteKit Scene File (the one that ends *.sks)? I am using the SKNode extension unarchiveFromFile(file) which returns a scene that I ...

I am integrating Google Plus login in my app along with Facebook and Twitter login. So, is it possible to get user's location(city) Like Facebook and Twitter? If yes, how?
Any kind of help would be ...

I'm am trying to build a simple music app using meteor as my framework. I'm using html5 audio tags as my player. Everything works and displays completely fine in my browser but when testing on the iOS ...

So I'm trying to create a view where part of the entered text becomes a link to another UIView. I was searching a lot and found the ClickableSpan class that enabled to click on part of the text. It's ...